Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following as of December 31 (in thousands):

	2016		2015
Raw materials	$	46,352	$	52,647
Work in process	11,234		8,776
Finished goods	13,468		14,235
	$	71,054	$	75,658